Catherine--who we still can't help but think of as Kate!--wore her usual too-perfect-to-be-true waves pinned half-up, but this time also pinned onto a gorgeous scarlet-velvet hat. (See how the ribbon is secured there in the back?) Sigh. Every bit as pretty as we would expect of a princess for Christmas mass, right?

What do you think of Duchess Catherine's Christmas Day hat and hairstyle?